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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/views/layout/layout_manager.h"
#include <memory>
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/views/test/test_layout_manager.h"
#include "ui/views/test/test_views.h"
#include "ui/views/view.h"
namespace views {
TEST(LayoutManagerTest, SetVisibleInvalidatesLayout) {
auto host = std::make_unique<View>();
View* child = host->AddChildView(std::make_unique<View>());
test::TestLayoutManager* layout_manager =
host->SetLayoutManager(std::make_unique<test::TestLayoutManager>());
child->SetVisible(false);
EXPECT_EQ(1, layout_manager->invalidate_count());
child->SetVisible(true);
EXPECT_EQ(2, layout_manager->invalidate_count());
}
TEST(LayoutManagerTest, SetVisibleUnchangedDoesNotInvalidateLayout) {
auto host = std::make_unique<View>();
View* child = host->AddChildView(std::make_unique<View>());
test::TestLayoutManager* layout_manager =
host->SetLayoutManager(std::make_unique<test::TestLayoutManager>());
child->SetVisible(true);
EXPECT_EQ(0, layout_manager->invalidate_count());
child->SetVisible(false);
EXPECT_EQ(1, layout_manager->invalidate_count());
child->SetVisible(false);
EXPECT_EQ(1, layout_manager->invalidate_count());
}
} // namespace views
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